Glass-delivering apparatus.



No. 700,428. Patehtedflay 20, I902.

w; n. KEYES. GLASS DELIVERING APPARATUS.

(Application filed Sept. 4, 1901.)

(No Modem W ITN ES 8 ES.

UNITED STATES PATENT OFFICE.

WASHINGTON D. KEYES, or BLAIRSV'ILLE;PEN SYL AN A.

GLASS-DELIVERING APPARATUS- SPECIFICATION forming part of Letters Patent No. 70 dated y 1909- Application filed September 4, 1901. $erial Nb. 74,286. (No model.)

To all whom it may concern:

Be it known thatI, WASHINGTON D. KEYEs, a citizen of the United States, residing at Blairsville, in the county of Indiana and State of Pennsylvania, have invented certain new and useful Improvements in Glass-Delivering Apparatus, of which the following is a specification, reference being hadtherein' to the accompanying drawings.

This invention relates to the manufacture of plate-glass, and has particular reference to apparatus for transferring molten glass from the melting and refining tank or other furnace to the casting-table.

The invention consists in the novel features of construction, and in the combination and arrangement of partshereinafter fully described and claimed, and illustrated by the accompanying drawings, wherein Figure 1 is a vertical sectional view of the delivery end of a tank-furnace with my improved apparatus shown in connection therecasting-table.

being withdrawn and delivered to the casting- Extending outward from above the cente of port 4 and over table 7 is track 8, provided with switch 9 to connect with either of tracks 10, the inner ends of the latter having position.

over ports 5, respectively. The tracks are preferably supported from above by barframe 11, the latter being here shown sus-- table by the other ladle. The active ladle is introduced through port 4, as shown in Fig. 1, and the glass dipped'fromring'fi. The filled ladle is then withdrawn, turned on swivel 15, and moved outward over the casting-table, as seen in dotted lines in Fig'. 1, when the glass is discharged... Switch 9 is then set so as to direct the trolley to the then vacant track 10, over which it is moved, and the ladle introduced in inverted position through corresponding port 5,.this position being maintained by chain 18, secured to the floor and engaging handle end 14 of the ladle. The previously-inactive ladle is then with drawn from the other port 5, switched onto the main track 8, filled anddischarged, as above described, and returned to its port 5. The'ladles may thu's be-used alternately and interchangeably as long as the operation of Y casting is continued. When not in use, the

ports 4: and 5 may be closed by doors at and 5, respectively.

The tank-furnace is so constructed and op-' erated that when the molten glass reaches the'delivery end'thereof it is refined, ready for casting.

In the manufacture of plate-glass it is essential that agitation ofthe refined molten glass be prevented. If materially agitated, whether by contact with surfaces of different temperature or by unskilful manipulation,

the quality of the glass is impaired, as is well known to those skilled in the art. With the ladies positioned-in the furnace before and up to the time of dippingthey acquire approximately the same temperature as the molten glass, so that when introduced thereinto, as when dipping, the glass is not injuriously disturbed or agitated, as would be the case if the ladies were of higher or lower temperature. Also by this arrangement the glass which hardens and adheres tothe ladles during-the operation of dipping anddelivering is softened and drips from the purposely-inverted ladles intothe furnace. Thus a cleansed and heated ladle is in readiness for each operation.

While I have here shown only two ladles arranged for use alternately, it will be understood that a greaternumber may be employed, if desired. As the invention contemplates icethe heating of the glass ladling ordelivering means to approximately the same temperature as the glass within the tank, also the employment of a plurality of glass-delivering apparatuses arranged for operating one after the other, it will be understood that the abovedescribed embodiment of the invention may, within the scope of the appended claims, be changed or varied without departing from the spirit of the invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a glass-furnace constructed with a delivering-port and ladle-conditioning ports or openings, a plurality of ladling devices, and a conveying means for each of said devices accessible interchangeably to the delivering-port and to one or more of the conditioning ports.

2. The combination of a glass-furnace constructed with a plurality of ports, connected tracks leading to said ports, and a plurality of glass-removing devices movable on the tracks and common to all of said ports.

3. The combination of a glass-furnace constructed with a plurality of ports, a track leading from each of said ports, a single track operatively connected to each of said firstmentioned tracks, and a plurality of glassremoving devices common to all of said tracks and furnace-ports.

4. The combination of a glass-furnace constructed with a delivery-port and auxiliary ports, the latter being at opposite sides of the delivery-port, a plurality of ladling devices, ladle-conveying means, a main trackway for the latter extending from the delivery-port, and auxiliary ways extending from the main trackway to each of the auxiliary ports.

5. The combination of a furnace constructed with a delivery-port and an auxiliary port at each side of the delivery-port, a main overhead track extending from the delivery-port, a track extending from each of the auxiliary ports and communicating'with the main track, trolleycarriages movable interchangeably over said tracks, and a ladling device carried by each carriage.

In testimony whereof I affix my signature in presence of two Witnesses.

WASHINGTON D. KEYES.

Witnesses:

J. M. NESBIT, ALEX. S. M BoN. 

